An undated handout photo provided by the Norwegian Army shows a Russian Tupolev Tu-95 strategic bomber refuelling over an unknown location during a military exercise. NATO aircraft tracked Russian strategic bombers over the Atlantic and Black Sea on October 29, 2014 and sorties of fighters over the Baltic in what the Western alliance called an unusual burst of activity at a tense time in East-West relations. (Photo by Reuters/Norwegian NATO QRA Bod)

People light fireworks on the banks of the river Sabarmati during the Hindu religious festival of Chatt Puja in the western Indian city of Ahmedabad October 30, 2014. Hindu women fast for the whole day for the betterment of their family and the society during the festival. (Photo by Amit Dave/Reuters)

Decorated helmets, symbols of the pro-democracy movement, are left behind a barricade in the area occupied by protesters in Mongkok shopping district in Hong Kong October 30, 2014. A member of China's central bank's advisory body warned on Wednesday that Beijing will punish Hong Kong if pro-democracy protests that have paralyzed parts of the Chinese-controlled financial center for a month are allowed to continue. (Photo by Damir Sagolj/Reuters)

A shark passes by as a diver dressed in a skeleton costume for Halloween feeds fishes inside a fish tank at the Sea Life aquarium in Berlin, October 30, 2014. (Photo by Fabrizio Bensch/Reuters)

A man fleeing the military offensive against militants in the Khyber Agency, travels on a vehicle laden with his family's belongings on the outskirts of Peshawar in Pakistan's Khyber-Pakhtunkhwa province October 30, 2014. Twenty-nine people were killed and thousands of civilians forced to flee Pakistan's northwestern region of Khyber, the military said on Thursday, as it stepped up a two-week-old offensive against Taliban militants in the area. Twenty-one suspected militants and eight soldiers were killed on Wednesday, the military said in a statement, but gave no figure for civilian casualties. (Photo by Fayaz Aziz/Reuters)

A pro-democracy protester wears a mask as he monitors barricades set-up in Mongkok shopping district in Hong Kong October 30, 2014. A member of China's central bank's advisory body warned on Wednesday that Beijing will punish Hong Kong if pro-democracy protests that have paralyzed parts of the Chinese-controlled financial center for a month are allowed to continue. The Chinese character in the background means “umbrella”. (Photo by Damir Sagolj/Reuters)

Palestinians aim fireworks towards Israeli police forces during clashes in Abu Tor neighborhood at east Jerusalem October 30, 2014. Israeli police shot dead a Palestinian on Thursday after he fired at them resisting arrest in East Jerusalem hours after the attempted assassination of a far-right Israeli activist, police said. “Anti-terrorist police units surrounded a house in the Abu Tor neighborhood to arrest a suspect in the attempted assassination of Yehuda Glick, immediately upon arrival they were shot at. They returned fire and shot and killed the suspect”, police spokesman Micky Rosenfeld said. (Photo by Ammar Awad/Reuters)

Smoke and dust rise over Syrian town of Kobani after an airstrike, as seen from the Mursitpinar crossing on the Turkish-Syrian border in the southeastern town of Suruc in Sanliurfa province, October 23, 2014. The Syrian town of Kobani has yet again seen fierce fighting between Islamic State and Syrian Kurdish forces. Kurdish authorities have agreed to send Peshmerga fighters to the Northern Syrian town to fight ISIL after Turkey has allowed passage. (Photo by Kutluhan Cucel/Getty Images)

Camel traders wearing turbans rest in a group surrounded by their camels at the Pushkar Fair in the desert Indian state of Rajasthan October 30, 2014. Thousands of animals, mainly camels, are brought to the annual fair to be traded. (Photo by Jitendra Prakash/Reuters)

A person looks at the creation named “Hong Kong Toy Painting” by artist Yinka Shonibare MBE (RA) during the media preview of Art Taipei 2014, October 30, 2014. Art Taipei 2014 will be held from October 31 to November 3 at the Taipei World Trade Centre. (Photo by Pichi Chuang/Reuters)

A girl takes picture at the creation named “Cowskin Buddha Face No. 7” by artist Zhang Huan during the media preview of Art Taipei 2014, October 30, 2014. (Photo by Pichi Chuang/Reuters)

A worker take a nap as she waits for customers at the International Trade Centre mall in Jakarta, October 30, 2014. (Photo by Reuters/Beawiharta)

A motorcycle passes a street vendor's fuel stand in Jakarta October 30, 2014. Indonesia's new government will make changes to its costly gasoline and diesel subsidies before the end of the year, the country's chief economics minister said on Thursday. Although a highly unpopular step, Indonesia's new minority coalition government has to urgently address Indonesia's biggest fiscal problem – a $23 billion fuel subsidy bill. The text on the stand reads “pure gasoline”. (Photo by Pius Erlangga/Reuters)

A rebel fighter fires a weapon against forces of Syria's President Bashar al-Assad at the Karm al-Tarab frontline in Aleppo October 30, 2014. (Photo by Hosam Katan/Reuters)

An employeer of German startup Panono displays a 360 degrees camera during the Pioneers festival in Vienna October 30, 2014. The Panono camera creates a 360 x 360 degree panorama with resolution of 108 megapixels in one shot and can be sent it via WiFi on a mobile device. The camera is expected to be available in spring 2015 for approximately 599 Euros. (Photo by Leonhard Foeger/Reuters)

Bertrand Piccard speaks as he stands in front of the submarine Mesoscaphe PX-8 “Auguste Piccard” constructed by his father Jacques Piccard at the Verkehrshaus der Schweiz traffic museum in Luzern October 30, 2014. The PX-8 was the world's first tourist submarine and during the Swiss national fair EXPO 64 in 1964 and 1965 it took 30,000 visitors in 1,100 dives in Lake Geneva to a depth of approximately 100 metres (328 feet). From 1969 to 1984, it was used for scientific and industrial observation dives in the Gulf of Mexico. Today the submarine was presented as a new exhibit of the Verkehrshaus der Schweiz. (Photo by Arnd Wiegmann/Reuters)

Models take a selfie backstage during Lagos fashion and design week October 29, 2014. Picture taken October 29, 2014. (Photo by Akintunde Akinleye/Reuters)

A woman checks a picture on her camera while standing in front of skulls, which form part of an art installation to celebrate the Day of the Dead, in Zocalo Square, Mexico City, October 30, 2014. (Photo by Tomas Bravo/Reuters)

Howard, a 35-year-old Australian Chinese musician and lookalike of North Korean leader Kim Jong Un, gestures in front of a wall with messages of support to pro-democracy protesters in part of Hong Kong's financial central district they are occupying October 31, 2014. Howard, who goes only by the first name in order to keep his music and impersonation careers separate, made a satirical appearance in support of the pro-democracy movement at protesters' encampment in Hong Kong ahead of the Halloween night. (Photo by Damir Sagolj/Reuters)

A man wearing a werewolf mask sings in an alley in downtown Mexico City, October 30, 2014. (Photo by Tomas Bravo/Reuters)

A Lucky Air crew member dressed as Spiderman (3rd R) during an onboard Halloween celebration sits next to passengers during a flight from Kunming to Shenzhen, in Kunming, October 31, 2014. Attendants of the domestic Lucky Air flight on Friday night dressed themselves in costumes of superheroes and movie figures to serve their customers as well as celebrate Halloween, according to local media. (Photo by Wong Campion/Reuters)

An exotic dancer poses for pictures with a man during the “Sexo and Entertainment” adult exhibition in Mexico City October 31, 2014. Exotic dancers, strippers and adult movie actors and actresses present new trends of the erotic and p*rn industry at the three-day event. (Photo by Edgard Garrido/Reuters)

Afghan security forces drag the body of a gunman after he was killed in a clash with police, in downtown Herat, Afghanistan, Tuesday, October 28, 2014. An Afghan police chief says that gunmen attacked a checkpoint Monday in the western city of Herat, killing two police officers. (Photo by Hoshang Hashimi/AP Photo)

French TV host Severine Ferrer presents a chocolate studded dress during a show as part of the chocolate fair in Paris, Tuesday, October 28, 2014. (Photo by Christophe Ena/AP Photo)

Participants, wearing Spiderman costumes, ride on a train after Halloween night in Tokyo’s Shibuya district November 1, 2014. Thousands of costumed revelers descended on Shibuya crossing in downtown Tokyo on Friday to celebrate Halloween in what has in recent years become a incredibly popular Japanese past time. (Photo by Yuya Shino/Reuters)

Workers carry the body of a mammoth prior the start of an exhibition of the Russian Geographic Union in central Moscow on October 28, 2014. The mammoth, named is Yuka, is about thirty-eight thousand years old and was found in Yakutia, on the Laptev sea bank in 2010. Researchers call Yuka the best-preserved mammoth in the history of paleontology. It is believed that the permafrost in which she was buried kept her so well intact. (Photo by Kirill Kudryavtsev/AFP Photo)

Visitors attend the opening ceremony of political cartoons exhibition “No filters” in Moscow, Russia, 31 October 2014. Rating of Russian President Vladimir Putin has updated its high, reaching 83 per cent according to a survey of the analytical center “Levada-Center”. (Photo by Yuri Kochetkov/EPA)